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某星载高光谱大气探测仪采用1553B作为外部总线以及RS422作为内部总线,针对此类卫星载荷的多总线测试要求,设计了一种用于地面试验的多总线测试平台。该平台通过将1553B端口与RS422端口同时接入卫星载荷,配置两种总线的相关终端特性,开发人机交互平台进行内外部指令的注入与监视,实现了对卫星载荷的完整监控、通讯测试、故障检测和数据记录。通过实验证明该系统能够更高效、全面地对具备多总线的卫星载荷进行地面测试,并完善相关测试方法,提高了针对卫星载荷的地面测试能力。
A satellite carrier hyperspectral air detector uses 1553B as external bus and RS422 as internal bus. According to multi-bus test requirements of such satellite loads, a multi-bus test platform for ground test is designed. By connecting 1553B port and RS422 port to satellite payload at the same time, the platform configures the characteristics of the two buses, develops human-computer interaction platform to inject and monitor internal and external commands, realizes complete monitoring of satellite load, communication test, Fault detection and data logging. The experiment proves that the system can test the satellite payload with multi-bus more efficiently and comprehensively, improve the related test methods and improve the ground test capability for satellite loads.